XML 126 R114.htm IDEA: XBRL DOCUMENT v3.20.1
Selected Quarterly Financial Data (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]                      
Sales $ 232,427 $ 243,217 $ 248,248 $ 248,466 $ 275,707 $ 267,294 $ 263,759 $ 258,711 $ 972,358 $ 1,065,471 $ 961,330
Gross profit 40,546 42,668 46,780 38,792 47,826 40,478 44,652 46,732      
Net income (loss) $ (3,135) $ 17,133 $ 14,477 $ 19,785 $ 26,157 $ (34,201) $ 14,722 $ 18,165 $ 48,259 $ 24,842 $ 38,251
Basic:                      
Basic $ (0.09) $ 0.51 $ 0.44 $ 0.60 $ 0.79 $ (1.03) $ 0.45 $ 0.55 $ 1.45 $ 0.75 $ 1.16
Diluted:                      
Net income (in usd per share) $ (0.09) $ 0.51 $ 0.44 $ 0.60 $ 0.79 $ (1.03) $ 0.44 $ 0.55 $ 1.45 $ 0.75 $ 1.16
Shares used to compute earnings (loss) per share:                      
Shares used to compute earnings (loss) per share, Basic (in shares) 33,278,000 33,271,000 33,270,000 33,123,000 33,103,000 33,110,000 33,074,000 32,982,000 33,236,115 33,067,800 32,945,961
Shares used to compute earnings (loss) per share, Diluted (in shares) 33,278,000 33,285,000 33,278,000 33,127,000 33,112,000 33,110,000 33,108,000 32,988,000 33,258,137 33,092,474 32,951,288